38 Vnivi rsity of California Publications in Zoology [Vol. 12 



The most characteristic lizard of the San Jacinto region and the 

 one most noticeably missed as one crosses the San Gorgonio Pass and 

 enters the San Bernardino region is Sceloporus orcniti. The 

 grotesque large black males with their bull-dog-like pose, the gaudily 

 colored males of medium size, the paler cross-barred females and 

 juvenals are inseparably associated with the foot-hills and lower areas 

 of San Jacinto. Their wildness or shyness seems to vary with localities. 

 Generally in the late afternoon the males are very bold and will 

 calmly await approach within a few feet. 



Phrynosoma blainvillei blainvillei Gray 

 Blainville Horned Lizard 



Distribution: Vallevista, 1800 feet, no. 49S; Cabezon. 1700-2000 

 feet, nos. 146. 167, 184-6, 277; Banning. 2200 feet, nos. 76-7, 102, 212, 

 348; Poppet Flat. 2800-4300 feet, nos. 345-7; Schain's Ranch, 4900 

 feet, nos. 272-5. 322-4. 336; Fuller's Mill, 5900 feet, no. 276: Ken- 

 worthy, 4500 feet, nos. 573-5; Vandeventer Flat, 4500 feet, nos. 576- 

 7 ; Oak Spring, 4900 feet. no. 233. 



These forms as determined by Mr. Bryant are all typical P. b. blain- 

 rilli i. Whereas they show well the color of the ground on which they 

 lived, they show no variation as to altitude or slope of the mountain. 

 For typical measurements see Bryant (1911, p. 37). 



This species occurs in Lower and Upper Sonoran and low Transi- 

 tion zones, but the bulk of the population is in LTpper Sonoran. 



Phrynosoma platyrhinos Girard 

 Desert Horned Lizard 

 At Whitewater, 1130 feet, a small specimen, no. * 33, was taken 

 in 1912. It was on the white sand, not far from several individuals of 

 CalUsaurus ventraUs. In coloration it is a light gray above, marked 

 with greenish gray spots. On either side of the neck the dark spots 

 show plainly. Ventrally it is pure white except for a few black flecks 

 in the post-anal region, on one leg. and on the tip of the tail. 



Gerrhonotus scincicauda ignavus Van Denburgh 



San Diegan Alligator Lizard 



Distribution : Vallevista, 1800 feet, nos. 500-1 ; Babezon, 1700 feet. 



nos. 133, 1S1-3; Schain's Ranch, 4900 feet, nos. 269, 319-21; 335; 



Strawberry Valley, 6000 feet, nos. 557-8; Kenworthy. 4500 feet, no. 



224 ; Garnet Queen Mine, 6000 feet. no. 524. 



